Combined heater and illuminator



y 1931- E. MONNOT 1,805,291

COMBINED HEATER AND ILLUMINATOR Filed Sept. 10. 1929 2 Sheets-Sheet. 1

Fly 7 i Q EL 11/0/2220;

attorney gmentot May 12, 1931.

E. L. MONNOT COMBINED HEATER AND ILLUMINATOR 2 Sheets-Sheet 2 Filed Sept. '10, 1929 gwpento'o Patented May 12, 1931 UNITED STATES EDWARD MONNOT, OF CANTON, OHIO, ASSIGNOR TO THE HARVARD COMPANY, 01

PATENT OFFICE CANTON, OHIO, A CORPORATION OF OHIO COMBINED HEATER AND ILLUMINATOR Application filed September 10, 1929. Serial No. 391,608.

'My invention relates'to combined heaters and illuminators for use on a dental unit or the like for heating spray bottles, water glasses, and the like, and for illuminating Q X-ray prints.

The desired characteristics of a dental appliance include maximum adaptability for the intended use, convenience of arrangement, and economy in the space occupied by the appliance.

The usual dental unit may be equipped with a heater for heating spray bottles, Water glasses, and the like, by means of an electric lamp enclosed in a housing having apertures formed therein for receiving the spray bottles, glasses and the like, and a rheostat for controlling the heat dissipated by the lamp. g'll The usual dental unit may also be equipped with a separate X-ray print illuminator, and it is a characteristic of X-rayprints that the same degree of illumination is not satisfactory for properly viewing different prints.

On the other hand when a lamp bulb is used as a heater element in combination with a rheostat located adjacent the bulb, such as a socket rheostat, the heat dissipated by the rheostat, when the rheostat has been operated to reduce the illumination of the lamp, plus the heat dissipatedby the dimmed lamp may be substantially equal to the heat dissipated by the lamp at maximum illumination.

The objects of the present improvements include the provision of a combined heater and illuminator in which a lamp bulb is utilized both as a heating and illuminating element, and is mounted within a novel housing arranged for receiving the bottles, glasses, and the like for being heated, and having a suitably positioned translucent sheet ofmaterial such as opal glass, through which the varying degrees of light may pass for satisfactorily illuminating different X- ray prints.

Further objects of the, improvements include the provision of an improved structure and arrangement for the light and associated rheostat, whereby heat from the rheostat is dissipatedand not introduced into the heating and illuminating chamber of the housing.

These and other objects are attained by the present improvements, as will be set forth hereinafter in greater detail and claimed.

A preferred embodiment of the improvements is illustrated in the accompanying drawings forming part hereof, in which Figure 1 is a fragmentary elevation view of one embodiment of the improved combined heater and illuminator, detached from its usual supporton a dental unit;

Fig. 2, a top plan view thereof;

Fig. 3, a transverse sectional view thereof as on line 33, Figs. 1 and 2;

Fig. 4,.anothertransverse sectional view thereof as on line H, Figs. 1 and 2;

Fig. 5, a view similar to Fig. 1 with the upper section of the housing removed; and

Fig. 6, a view similar to Fig. 2 with the upper section of the housing removed.

Similar numerals refer to similar parts throughout the several views.

The improved combined heater and illuminator indicated generally at 10 is illustrated in the drawings detached from its usual supppirt on the standard of a dental unit or the The combined heater and illuminator 10 includes a housing comprising a base section 11 and a cover section 12. V

The base section 11 preferably includes an upwardly opening channel member 13 secured at one side to a supporting plate 14 which is adapted to be secured to the standard or the like of a dental unit.

One end of the channel member 13 terminates in an upwardly extending tongue 15 for fitting within one end 16 of the bottom of the cover section 12.

The other end of the base section includes an upwardly extending end cover and rheostat knob mounting plate 17, whichfits over the end of adjacent inverted U wall-18 of the cover section 12.

y Adjacent the end plate 17, the channel 'bafiie partition 22 is mounted on the channel member 13, and the lamp 21" extends through an aperture 23 in the baffle partition, the size of the aperture being just suificient to permit clearance of the lamp, and the baffle member being adapted to prevent a flow of the heat dissipated from the socketrheostat into the space surrounding the lamp.

The end cover and rheostat knob mountin plate 17 has journalled therein the shaft 250i a rheostat knob 25, the knob being located on the outside of the plate 17, and the shaft extendingthrough the plate and carry: ing on its inner end a radially extending arm 26 from the outer endof which a rheostat actuating rod 27 extends longitudinally over the clamp 19 to the socket rheostat and passes through a ,loop 28'on the rotatable re..- sistance varying sleeve'c29pof the socket rheostat, whereby rotation 'ofthe knob rotates thesleeve 29 and increases or decreases the resistance in series with the lamp in a Well known manner.

The inverted U wall 180i the cover section 12 extends, when in position, from the end plate 17 to a junction with upwardly extending well walls 30 forming an interior illuminating and heating chamber 31.

The battle partition 22 extends across the inner'end 32'of' the inverted U wall 18, and openings 33 are formed in one side of the wall 18 for permittingdissipation of heat from the rheostat socket '29 through the openings into the atmosphere.

The well, walls 80 have an illuminating opening 34: formed at the outside or front 35 thereof, and preferably include oppositely openin ,parallel grooves 3'6 and 36, the plane 'ofwh'ic slopes downwardly from the'upper end of'the well walls, and. in which a sheet or plate 87 of'translucent glass or the like'is mounted in the angled position best illns t'rated in Fig. 3', whereby 'X-ray prints may be rested on the top, outer surface of the glass plate and may be illuminated tothe p'roper' intensity by manipulation. of the rh stat k ob 2 The upperend of the well walls 3.0 are connected by a transverse normallyhoriz ontal web 38 in which are formed a plurality pfopenings 39 and 39, theend openings 39 Leach fbeing adapted for receivinga spray" bott le 40, and the central opening 39 being adapted for receiving water glass 41, the spray bottle and the'glasseach extending a siihstantialdistance into the'heating" chamerfii i r' ring h a ed; 1 t d r degree therein by suitable adjustment of the rheos at kn A screwflQ may extend through a suitable aperture in the lower end of thecover sect on, and saw into. t a e ona e for securing the cover section on the base.

, Acc di gly; ef ompa om i e fh a andililam ato s provi e y which z ing electric lamp is utilized for providing varying degrees of heat, and for providing varying degrees of illumination for reading X- ray prints and the like, and the structure and arrangement of the appliance is such that when the lamp is illuminated at less than max imum intensity, the heat dissipated by the rheostat is prevented from entering the heatingand illuminating chamber by thebaflle par o an pas e in o theatma phere through the openings 33 of the cover section.

I claim:

-' 1. A, combinedgheater and illuminator including walls forming a chamber, an electric heater, lamp within the chamber, one of the a l ng. p ing f rm d here n or and a affle wall between the rheost e d 5 lamp.

' 2. A combinedheater and illuminato-r in; eluding walls forming a chamber, an electric heater'l'amp within the chamber, one ofthe walls having openings formed therein for receiving articles to beheated in the chamber, another of the'walls having an illuminating opening formed therein, a pane of translucent material inclined to the vertical and closing theilluminating opening, a rheostat in the chamber for variablycontrolling the lamp, and a baflie wall betweenthe rheostat and the lamp.

3. A combined heater and illuminator int eluding walls forming a chamber, a heater lamp within the chamber, one ofthe walls hav ng openings formed therein for receiving articles to be heated'in the chamber, an-

other of the walls having an illuminating opening formed therein, and means Within the chamber for varying the intensityofthe heater lamp. 7 Y 1 4,.A combined heater and illuminator including walls forming aqch'amber, a heater lamp Within the chamber, one of the walls having openings formed therein for receiving articles to be heated in the chamber, another of the walls having an illuminating opening formed therein, a pane of transhijcent, material inclined to the vertical and 010s; in 1 h umina ing p ni g, an 7 means of theheat lam?- l n ls o m ng a h mber, an-e e t ic heater lamp within the chamber, one ef tjhe walls having openings. .formed therein for receiving articles to be heated inthe chain.-

thin he amb r f ary g he nte sity .'120 5, A combinedheater and illuminatnr 1n ber, another of tl e'wal-ls having an i'llumina-ting opening formed therein, a rheostatin the chamber for variably controlling the l amp,'a bafile wall between therheostat and the lamp, and means for dissipating'the'heat from the rheostat directly into the atmos-.

phere.

6. A combined heater and illuminator includinv walls forming a chamber, an electric heater lamp within the chamber, one of the walls having openings formed therein for receiving articles to be heated in the chamber, another of the Walls having an illuminating opening formed therein, a rheostat in the chamber for variably controlling the lamp, a baflle Wall between the rheostat and the lamp, and openings formed in the chamber walls adjacent the rheostat for dissipating the heat from the rheostat into the atmoshere.

7. A combined heater and illuminator including walls forming a heating and illuminating chamber and a variable control chamber adjacent thereto, a heater lamp in the heating and illuminating chamber and openings formed in the Walls of the chamber for receiving articles to be heated in the chamber, and a rheostat in the variable control chamber for variably controlling the lamp.

8. A combined heater and illuminator including walls forming a heating and illuminating chamber and a variable control chamber adjacent thereto, a heater lamp in the heating and illuminating chamber and openings formed in the walls of the chamber for receiving articles to be heated in the chamber, a rheostat in the variable control chamber for variably controlling the lamp, and means for dissipating the heat from the rheostat directly into the atmosphere.

9. A combined heater and illuminator including walls forming a heating and illuminating chamber and a variable control chamber adjacent thereto, a heater lamp in the heating and illuminating chamber and open ings formed in the walls of the chamber for receiving articles to be heated in the chamber, a rheostat in the variable control chamber for variably controlling the lamp, and openings formed in the walls of the variable control chamber for dissipating the heat from the rheostat into the atmosphere.

In testimony that I claim the above, I have hereunto subscribed my name.

EDWARD L. MONNOT. 

